> There are variants of Spectre and Meltdown that expose kernel memory. If you're really in a position where you don't think that makes a difference, then why are you messing around with user accounts in the first place? Why aren't you running all your software as root?

Only somewhat devil's advocate: Software running as root can accidentally delete important files. I run software as non-root to prevent myself from my silly mistakes. You don't accidentally leak information through SPECTRE.